Face shield



FIG. 1 is a side perspective view of a face shield showing my new design, the head shown in broken lines is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof; and

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a face shield, as shown and described. 